Hypertext Webster Gateway: "Ascus"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ascus \As"cus\, n.; pl. Asci. [NL., fr. Gr. ? a bladder.] (Bot.)
A small membranous bladder or tube in which are inclosed the
seedlike reproductive particles or sporules of lichens and
certain fungi.
From WordNet (r) 1.7 (wn)
ascus
n : saclike structure in which ascospores are formed through
sexual reproduction of ascomycetes
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